Glass assembly, injection mold and injection molding method

Abstract

The invention relates to the technical field of vehicle accessory production, in particular to a glass assembly, an injection mold and an injection molding method. The glass assembly comprises a glass body, a covering edge and a guide rail, the glass body is connected with the guide rail through the covered edge; in the first direction, the outer surface of the glass body and the outer surface of the covered edge are flush with the outer surface of the guide rail. According to the glass assembly provided by the invention, the glass body and the guide rail are connected and integrated through the covered edge, and the outer surface of the glass body, the outer surface of the covered edge and the outer surface of the guide rail are flush, so that the surface of the glass assembly observed by an observer from the outside is smooth, the whole glass assembly is in an integrated state, the appearance is high in science and technology sense, and good visual experience is brought to people.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle parts production, and in particular to a glass assembly and an injection mold. Background Art

[0002] With the improvement of social productivity, more and more consumers begin to pay attention to the aesthetics of vehicles. High-gloss black aluminum alloy guide rails are becoming more and more popular in automobiles due to their outstanding appearance.

[0003] In existing conventional edging products, the guide rail and the edging will cover a portion of the glass, making the glass body and the outer surface of the high-gloss black aluminum alloy guide rail uneven, and having an edging structure on the edge of the glass, resulting in a poor appearance of the final product.

[0004] In addition, the manufacturing precision of the edge-wrapped products using high-gloss black aluminum alloy rails is high, and the production requirements are high and difficult. However, most existing injection molds only consider positioning and fixing issues during injection molding, and it is difficult to meet the final quality requirements when facing the high-precision injection molding needs of high-gloss black aluminum alloy rails. For example, when the high-gloss black aluminum alloy rails are edge-wrapped with glass, they are prone to flashing or being crushed, which affects the appearance and leads to a low product qualification rate. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a glass assembly and an injection mold to overcome the defects of the existing hemming products, that is, the hemming structure is exposed and the appearance is poor.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A glass assembly includes a glass body, an edge and a guide rail;

[0008] The glass body and the guide rail are connected via the edging;

[0009] In the first direction, the outer surface of the glass body and the outer surface of the edging are flush with the outer surface of the guide rail, and the edging has a constriction on the flush side close to the guide rail, and the guide rail has a buffer angle protruding toward the edging direction near the constriction.

[0010] Further, the guide rail has a connecting portion and a guide groove portion, the glass body is arranged corresponding to the connecting portion, and the glass body and the connecting portion are connected through the edging;

[0011] The guide groove portion includes an upper side wall, a lower side wall and a first partition wall;

[0012] The connecting portion includes an extension wall and a second partition wall;

[0013] The first partition walls are distributed along the first direction and are arranged between the upper side wall and the lower side wall; the lower side wall extends in the second direction to form an extension wall, and the second partition walls are distributed along the first direction and are arranged at an end of the extension wall away from the lower side wall;

[0014] The length of the first partition wall is greater than the length of the second partition wall.

[0015] Furthermore, the side surface of the hemming is flush with the outer surface of the second partition wall.

[0016] Furthermore, the connecting portion further includes third partition walls, and the third partition walls are distributed along the first direction and are arranged on the extending wall.

[0017] Furthermore, the buffer corner is arranged at the connection between the upper side wall and the first partition wall, and the buffer corner has a first sealing surface, so that the first sealing surface is arranged between the upper side wall and the first partition wall, and the first sealing surface extends from the upper side wall to the direction where the lower side wall is located and gradually tilts toward the direction close to the second partition wall.

[0018] The present invention also provides an injection mold for preparing any of the above-mentioned glass assemblies, comprising:

[0019] The upper mold core is capable of adsorbing the glass body, and the upper mold core has a core, and the core abuts against the glass body;

[0020] A lower mold core has a cavity for placing the guide rail, and the cavity is arranged corresponding to the core;

[0021] A molding slide block is arranged on one side of the mold cavity and can slide from the outside of the mold cavity to the inside of the mold cavity to push the guide rail;

[0022] Wherein, the core has a sealing boss, and the sealing boss is arranged corresponding to the first sealing surface;

[0023] When the mold is closed, there is a sealing gap between the sealing boss and the guide rail, and / or a space is formed between the core and the outer surface of the guide rail.

[0024] Furthermore, when the mold is closed, the width of the sealing gap is less than or equal to 0.2 mm.

[0025] Furthermore, the mold cavity is formed with a receiving groove for accommodating the guide rail, the side wall of the receiving groove is formed with a second sealing surface, and an adjustment gap is provided between the second sealing surface and the surface of the guide rail.

[0026] The present invention also provides an injection molding method, which is applied to the injection mold as described above, and comprises the following steps:

[0027] S1, mold matching: in the sliding direction of the molding slider, a sealing gap is reserved between the buffer angle of the guide rail to be matched with the mold and the sealing boss of the upper mold core, and the first injection molding is performed. After the first injection molding, it is determined whether the adjustment gap needs to be adjusted according to the flash thickness on the surface of the guide rail. If the flash thickness is greater than 0.1 mm, the adjustment gap is increased;

[0028] S2, production: the guide rail to be injected is placed into the cavity of the lower mold core, the upper mold core absorbs the glass body to be injected, the upper mold core and the lower mold core are molded together, the sealing boss of the upper mold core enters between the buffer corner of the guide rail and the glass body, in the sliding direction of the molding slider, the sealing gap is formed between the buffer corner of the guide rail and the glass body, and injection molding is performed.

[0029] Furthermore, the production step includes the following steps:

[0030] S21: placing the guide rail to be injected into the cavity, and making the guide rail abut against the side wall of the cavity;

[0031] S22: The upper mold core absorbs the glass body and places it on the mold cavity, and in the vertical direction, the edge of the glass body corresponds to the guide rail;

[0032] S23: the upper mold core and the lower mold core are molded together, the forming slider is pushed, and the forming slider pushes the guide rail to move until the guide rail is pressed against the side wall of the cavity;

[0033] S24: performing injection molding to connect the glass body and the guide rail through injection molding.

[0034] The beneficial effects of the present invention are:

[0035] 1. The glass assembly provided by the present invention integrates the glass body and the guide rail by edging, and makes the outer surface of the glass body, the outer surface of the edging and the outer surface of the guide rail flush, so that the surface of the glass assembly observed by the observer from the outside is flat, and the whole is in an integrated state, so that the appearance has a strong sense of science and technology, giving people a good visual experience. In addition, in order to meet the requirements of the aesthetics of the glass assembly product, a necking is required between the glass and the guide rail. Since one side wall of the necking is the surface of the guide rail, a buffer angle is set to prevent the mold from crushing the guide rail during the necking forming process, so as to ensure the integrity and aesthetics of the appearance of the glass assembly.

[0036] 2. The injection mold provided by the present invention avoids squeezing the guide groove of the guide rail when molding the glass assembly by setting the space gap, preventing the guide rail from being crushed, and ensuring that the appearance of the glass assembly meets the requirements.

[0037] 3. The injection molding method provided by the present invention observes the flash condition on the surface of the guide rail through one injection molding, and then determines whether it is necessary to adjust the modulus of the side wall of the cavity, and changes the size of the adjustment gap according to the thickness of the flash, so that in the subsequent injection molding process, the cavity can be adapted to the guide rail, and the buffer angle of the guide rail can be prevented from contacting with the sealing boss of the upper mold core, which can not only prevent the sealing boss from crushing the guide rail, but also prevent the generation of flash on the surface of the guide rail, thereby improving the aesthetics of the appearance of the glass assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram of the local structure of a glass assembly in an embodiment of the present invention Figure 1 ;

[0039] Figure 2 is a three-dimensional schematic diagram of an injection mold in one embodiment of the present invention;

[0040] Figure 3 A three-dimensional schematic diagram of an upper mold core in one embodiment of the present invention;

[0041] Figure 4 for Figure 3 A local enlarged schematic diagram of the middle A;

[0042] Figure 5 A three-dimensional schematic diagram of a lower mold core in one embodiment of the present invention;

[0043] Figure 6 It is a partial cross-sectional schematic diagram of a lower mold core in one embodiment of the present invention;

[0044] Figure 7 A partial cross-sectional schematic diagram of an injection mold in one embodiment of the present invention;

[0045] Figure 8 It is a schematic diagram of the local structure of the injection mold during injection molding in one embodiment of the present invention;

[0046] Fig. 9 for Figure 8 A partial enlarged schematic diagram of point B in the middle;

[0047] Fig.10 for Figure 8 A partial enlarged schematic diagram of point C in the middle (corresponding to the state of step S1);

[0048] Fig.11a A schematic diagram of the local structure of a glass assembly in an embodiment of the present invention Figure 2 ;

[0049] Fig.11b A schematic diagram of the local structure of a glass assembly in one embodiment of the present invention Figure 3 ;

[0050] Fig.11cA schematic diagram of the local structure of a glass assembly in one embodiment of the present invention Figure 4 ;

[0051] Fig.11d A schematic diagram of the local structure of a glass assembly in one embodiment of the present invention Figure 5 .

[0052] Description of labels:

[0053] 1. Guide rail; 10. Buffer angle; 11. Upper side wall; 111. First sealing surface; 12. Lower side wall; 13. First partition wall; 131. Groove; 14. Extension wall; 15. Second partition wall; 16. Third partition wall; 17. Guide groove; 18. Connecting part; 19. Adjust gap; 2. Glass body; 3. Edge wrapping; 31. Shrinkage;

[0054] 4. Injection mold; 41. Upper mold core; 411. Core; 412. Sealing boss; 413. Avoidance gap; 414. Sealing gap; 42. Lower mold core; 421. Cavity; 4211. Accommodating groove; 4212. Second sealing surface; 422. Molding slider; 423. Sliding limit block. DETAILED DESCRIPTION

[0055] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0056] Existing edging products cover part of the glass, making the glass body uneven with the outer surface of the high-gloss black aluminum alloy guide rail, and having an edging structure on the edge of the glass, resulting in a poor appearance of the final product.

[0057] Please refer to Figure 1 , a glass assembly, comprising a glass body 2, an edge 3 and a guide rail 1; the glass body 2 is connected to the guide rail 1 through the edge 3; in a first direction, the outer surface of the glass body 2 and the outer surface of the edge 3 are flush with the outer surface of the guide rail 1. Specifically, the first direction is a direction perpendicular to the glass body 2, pointing from the inner side of the glass body 2 to the outer side of the glass body 2, and the edge 3 has a constriction 31 on the side close to the guide rail 1 on the flush side, and the guide rail has a buffer angle 10 protruding toward the edge 3 near the constriction 31. That is, the edge 3 is filled between the glass body 2 and the guide rail 1, and after the fixation is completed, the outer surface of the glass body 2 and the outer surface of the edge 3 are flush with the outer surface of the guide rail 1, so that the outer surface of the glass assembly is flush as a whole. Among them, the buffer angle is an R angle or a combination of a C angle and an R angle. In order to ensure that the angle of the buffer angle meets the requirements, the extrusion die should be processed slowly in the previous guide rail extrusion process.

[0058] Optionally, the glass body used in this article is not limited to automobile glass, but can be glass of a vehicle, and the vehicle includes a vehicle, which is a vehicle in a broad sense, and can be a transportation vehicle (such as a commercial vehicle, a passenger car, a motorcycle, a flying car, a train, etc.), an industrial vehicle (such as a forklift, a trailer, a tractor, etc.), an engineering vehicle (such as an excavator, a bulldozer, a crane, etc.), agricultural equipment (such as a lawn mower, a harvester, etc.), amusement equipment, a toy vehicle, etc. For another example, the vehicle can be a vehicle such as an airplane or a ship. When the vehicle is a vehicle, the glass body can be a sunroof glass, a rear windshield, or a side window glass of the vehicle.

[0059] It is understandable that the glass assembly provided by the present invention integrates the glass body 2 and the guide rail 1 by means of the edging 3, and makes the outer surface of the glass body 2 and the outer surface of the edging 3 flush with the outer surface of the guide rail 1, so that the surface of the glass assembly observed by the observer from the outside is flush, and the whole is in an integrated state, so that the appearance has a strong sense of science and technology, giving people a good visual experience. In addition, in order to meet the requirements of the aesthetics of the glass assembly product, a necking is required between the glass and the guide rail. Since one side wall of the necking is the surface of the guide rail, a buffer angle is set to prevent the mold from crushing the guide rail during the necking forming process, so as to ensure the integrity and aesthetics of the appearance of the glass assembly.

[0060] In some embodiments, the guide rail 1 has a connection portion 18 and a guide groove portion 17, and the connection portion 18 extends from the bottom of the guide groove portion 17 along the second direction; the glass body 2 is arranged corresponding to the connection portion 18, and the glass body 2 and the connection portion 18 are connected by the edge 3. That is, the guide groove portion 17 is arranged around the side of the glass body 2, so that in the first direction, the outer surface of the glass body 2 can be flush with the outer surface of the guide groove portion 17. This arrangement provides sufficient connection space for the glass body 2 and the guide rail 1, and ensures the stability of the glass assembly connection while ensuring a good visual effect of the appearance. Specifically, the second direction is the width direction of the guide rail, from the guide groove portion 17 of the guide rail 1 to the side of the glass body 2, and the plane where the second direction is located is parallel to the outer surface of the glass body 2.

[0061] In some embodiments, the guide groove portion 17 includes an upper side wall 11, a lower side wall 12 and a first partition wall 13; the connecting portion 18 includes an extension wall 14 and a second partition wall 15; the first partition wall 13 is distributed along the first direction and arranged between the upper side wall 11 and the lower side wall 12; the lower side wall 12 extends in the second direction to form the extension wall 14, and the second partition wall 15 is distributed along the first direction and arranged at an end of the extension wall 14 away from the lower side wall 12; the length of the first partition wall 13 is greater than the length of the second partition wall 15. That is, the connecting portion 18 is arranged on one side of the guide groove portion 17, and is obtained by extending the lower side wall 12 in the second direction. The extension wall 14 and the second partition wall 15 form an L-shaped structure, which is used to fill the edge 3, so that the glass body 2 is fixed to the guide rail 1. At the same time, the length of the second partition wall 15 and the first partition wall 13 is limited, so that a gap is left between the second partition wall 15 and the inner surface of the glass body, which improves the stability of the edge forming process by injection molding and reduces the possibility of flashing when filling the edge.

[0062] In some embodiments, the side surface of the edge 3 is flush with the outer surface of the second partition wall 15. This arrangement makes it possible to observe no redundant edge 3 when viewing through the glass body 2, further improving the visual effect.

[0063] In some embodiments, the connecting portion 18 further includes a third partition wall 16, which is distributed along the first direction and arranged on the extension wall 14. That is, the third partition wall 16 is arranged between the first partition wall 13 and the second partition wall 15. The arrangement of the third partition wall 16 can increase the contact area between the edge 3 and the guide rail 1 and enhance the fixing effect. In addition, a groove 131 is arranged at a position of the first partition wall 13 close to the buffer corner 10. The arrangement of the groove 131 can not only improve the injection molding stability during the edge forming process, but also further increase the contact area between the edge and the guide rail, reduce the probability of debonding, and improve the stability of the finished product structure.

[0064] In some embodiments, the width of the third partition wall 16 gradually decreases from the extension wall 14 to the direction away from the extension wall 14. That is, the third partition wall 16 is a prism structure as a whole, and the width gradually decreases from the extension wall 14 to the direction close to the glass body 2, further increasing the contact area between the edge 3 and the guide rail 1, and strengthening the stability of the connection.

[0065] like Fig. 9As shown, in some embodiments, the guide groove portion 17 also includes a first sealing surface 111, and a buffer angle is set between the upper side wall 11 and the first partition wall 13. The surface of the buffer angle forms the above-mentioned first sealing surface 111, and the first sealing surface 111 extends from the upper side wall 11 to the direction where the lower side wall 12 is located and gradually tilts toward the direction close to the second partition wall 15. The setting of the first sealing surface 111 is used to cooperate with the injection mold 4 during injection molding to form a sealing gap 414, block the flow of the edge 3, prevent the edge 3 from overflowing to the outer surface of the upper side wall 11, and prevent the appearance of flash, thereby ensuring the quality of the appearance of the glass assembly. Specifically, those skilled in the art can adjust the specific inclination angle and length of the first sealing surface 111 according to actual needs, without specific limitation. Among them, the width of the sealing gap 414 is less than or equal to 0.2mm, preferably less than or equal to 0.1mm. Optionally, the width of the sealing gap 414 is 0.01mm, 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.1mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, 0.18mm or 0.19mm.

[0066] Furthermore, the specific structure of the buffer angle 10 is adjusted according to the shape of the required shrinkage between the glass and the guide rail. Fig.11a ) or wide V groove ( Fig.11b ), the corner of the buffer angle is an R angle, then the first sealing surface 111 is tangent to the R angle, and the length of the first sealing surface 111 is 0.3-3 mm, preferably 0.8-1.2 mm. Further, the length of the first sealing surface 111 is 0.8 mm, 0.85 mm, 0.9 mm, 0.95 mm, 1.0 mm, 1.05 mm, 1.1 mm, 1.15 mm or 1.2 mm. When the shrinkage is a shallow mouth ( Fig.11c or Fig.11d ), the corner of the buffer corner 10 can be set to an R angle (such as Fig.11c As shown), the diameter of the R angle is about 2 mm, and the arc length of the R angle is ensured to be greater than or equal to 1.2 mm to form the above-mentioned first sealing surface 111; the corner of the buffer corner 10 can also be set to a combination of the C angle and the R angle (such as Fig.11d As shown), the corners of the buffer corner 10 include two R corners (i.e., rounded corners) and one C corner (i.e., chamfered corner), the two R corners are respectively located at the two ends of the C angle distribution direction, wherein the C angle is close to the upper surface of the guide rail, the C angle has a straight line segment, and the length of the straight line segment is greater than or equal to 1.2 mm to form the above-mentioned first sealing surface 111.

[0067] like Figure 2 to Figure 10As shown, the present invention also provides an injection mold 4 for preparing any of the glass assemblies described above, comprising: an upper mold core 41, a lower mold core 42 and a molding slider 422. The upper mold core 41 has a core 411, and the core 411 abuts against the glass body 2; the lower mold core 42 has a cavity 421 for placing the guide rail 1, and the cavity 421 is corresponding to the core 411; the molding slider 422 is arranged on one side of the cavity 421, and can slide from the outside of the cavity 421 to the inside of the cavity 421; wherein the core 411 has a sealing boss 412, and the sealing boss 412 is corresponding to the first sealing surface 111. When the mold is closed, there is a sealing gap 414 between the sealing boss 412 and the guide rail 1, and / or, the core 411 and the outer surface of the guide rail 1 are separated to form an avoidance gap 413, and the avoidance gap 413 is arranged corresponding to the guide groove portion 17. Further, the molding slider 422 slides from the outside of the cavity 421 to the inside of the cavity 421, extends into the guide groove portion 17, and pushes the first partition wall 13 of the guide rail 1, so that the guide rail 1 is fixed in the injection space formed by the cavity 421 and the core 411. The core 411 is provided with an avoidance gap 413 at a position corresponding to the guide groove portion 17. When the mold is closed, the avoidance gap 413 prevents the core 411 from directly contacting the upper side wall 11 of the guide rail 1, and avoids crushing the guide rail 1, thereby ensuring the appearance quality of the finished glass assembly. Preferably, the width of the avoidance gap 413 is greater than or equal to 0.1 mm, preferably greater than or equal to 0.05 mm. Such an arrangement can ensure that the core 411 does not contact the guide groove portion 17, thereby preventing the guide rail 1 from being crushed.

[0068] It is understandable that the injection mold 4 provided by the present invention, by setting the space gap 413, avoids squeezing the guide groove portion 17 of the guide rail 1 when molding the glass assembly, prevents the guide rail 1 from being crushed, and ensures that the appearance of the glass assembly meets the requirements.

[0069] In some embodiments, the upper mold core 41 further includes an adsorption component, which is disposed inside the core 411 so that the glass body 2 is adsorbed on the surface of the core 411 .

[0070] Preferably, the lower mold core 42 further includes a sliding limit block 423, which can abut against the forming slider 422 to limit the sliding distance of the forming slider 422. The sliding limit block 423 can limit the sliding distance of the forming slider 422 to prevent the guide rail 1 from being overly squeezed by the forming slider 422 and prevent the guide rail 1 from being crushed.

[0071] In some embodiments, the core 411 has a sealing boss 412, and the sealing boss 412 is arranged corresponding to the first sealing surface 111. When the mold is closed, there is a sealing gap 414 between the sealing boss 412 and the guide rail 1, and the width of the sealing gap 414 is less than 0.1mm. The shape of the sealing boss 412 is set according to the specific shape of the first sealing surface 111, so that the sealing boss 412 can cooperate with the first sealing surface 111 to form the sealing gap 414. When the width of the sealing gap 414 is less than 0.1mm, the raw material of the injection molding edge 3 cannot overflow into the avoidance gap 413 through the sealing intermittently, which can avoid the generation of quality problems such as flash. Those skilled in the art can adjust the shape of the sealing boss 412 according to the actual specifications of the guide rail 1 and the specific type of the first sealing surface 111, without specific limitation. Optionally, since the buffer corners have different shapes in different glass assemblies, the sealing boss 412 also has different shapes in each corresponding mold, and since the sealing boss 412 is embedded in the space between the buffer corner 10 and the glass body 2, a necking 31 is formed on the edge after the injection molding is completed, and the shape of the necking 31 matches the sealing boss 412. Specifically, in the first embodiment, the necking 31 is an inverted trapezoid, and correspondingly, the longitudinal section of the sealing boss 412 is an inverted trapezoid; in the second embodiment, the necking 31 except for the first partition wall of the guide rail is curved, and the necking 31 is trapezoidal, and in this embodiment, the angle formed between the bottom wall of the necking 31 and the side wall of the guide rail 1 is greater than or equal to 90°; and in the above two embodiments, the buffer angle 10 is an R angle; in the third and fourth embodiments, the necking 31 is V-shaped, the difference is that in the third embodiment, the buffer angle 10 is an R angle, and in the fourth embodiment, the buffer angle 10 is a combination of an R angle and a C angle.

[0072] Preferably, the maximum width of the sealing boss 412 is 1 mm, and the height of the sealing boss 412 is 1 mm. This arrangement can ensure the structural strength of the sealing boss 412 and the service life of the mold.

[0073] Preferably, the distance between the lower mold core 42 and the lower surface of the glass body 2 is less than 0.1 mm. This arrangement prevents the raw material of the injection molding edge 3 from flowing to the inner surface of the glass body 2 through the gap between the first partition wall 13 and the glass body 2, thereby avoiding the occurrence of quality problems such as flash.

[0074] In some embodiments, Fig.10As shown, the mold cavity 421 is formed with a receiving groove 4211 for accommodating the guide rail 1, and the side wall of the receiving groove 4211 is formed with a second sealing surface 4212, and an adjustment gap 19 is provided between the second sealing surface 4212 and the surface of the guide rail 1; specifically, an adjustment gap 19 is provided between the side wall of the mold cavity 421 and the second partition wall 15, and the adjustment gap 19 is provided corresponding to the sealing gap 414. The adjustment gap 19 is used to adjust the size of the sealing gap 414. When the sealing gap 414 is too large and causes the glass assembly to form a flash, it is necessary to adjust the overall position of the guide rail 1. By reducing the width of the sealing gap 414, when the sealing gap 414 is reduced, the second partition wall 15 will be closer to the side wall of the mold cavity 421. The existence of the adjustment gap ensures that the second partition wall 15 of the guide rail 1 will not abut against the side wall of the mold cavity 421 when the sealing gap 414 is adjusted, so as to ensure that the adjustment can be carried out normally.

[0075] Preferably, the width of the adjustment gap is 0.1 mm. This arrangement provides sufficient margin for the adjustment of the sealing gap 414, ensuring that the sealing gap 414 can be sealed while preventing the guide rail 1 from being crushed. At the same time, this arrangement prevents the raw material of the edge wrapping 3 from flowing into the adjustment gap during injection molding, thereby avoiding the occurrence of quality problems.

[0076] Preferably, a buffer layer is provided on the surface of the mold cavity 421. The buffer layer can support the lower side wall 12 and the extension wall 14 of the guide rail 1 to prevent the guide rail 1 from being crushed. The buffer layer is preferably a flexible high-temperature film.

[0077] An injection molding method, applied to the injection mold as described above, comprises the following steps:

[0078] S1. Mold matching: In the sliding direction of the molding slide block 422, a sealing gap 414 is reserved between the buffer angle 10 of the guide rail 1 to be matched with the mold and the sealing boss 412 of the upper mold core 41, and the first injection molding is performed. After the first injection molding, it is determined whether the adjustment gap 19 needs to be adjusted according to the flash thickness on the surface of the guide rail 1. If the flash thickness is greater than 0.1 mm, the adjustment gap 19 is increased;

[0079] S2. Production: Place the guide rail 1 to be injected into the cavity 421 of the lower mold core 42, the upper mold core 41 absorbs the glass body 2 to be injected, the upper mold core 41 and the lower mold core 42 are molded together, and the sealing boss 412 of the upper mold core 41 enters between the buffer corner 10 of the guide rail 1 and the glass body 2. In the sliding direction of the molding slider 422, a sealing gap 414 is formed between the buffer corner 10 of the guide rail 1 and the glass body 2, and injection molding is performed.

[0080] It can be understood that by observing the flash on the surface of the guide rail during one injection molding, it can be determined whether it is necessary to adjust the modulus of the side wall of the cavity, and the size of the adjustment gap can be changed according to the thickness of the flash, so that in the injection molding process of the subsequent production steps, the cavity can be adapted to the guide rail, and the buffer angle of the guide rail can be avoided from contacting the upper mold core, which can not only avoid the upper mold core from crushing the guide rail, but also prevent the generation of flash on the surface of the guide rail, thereby improving the aesthetics of the appearance of the glass assembly.

[0081] In some embodiments, the producing steps include the following steps:

[0082] S21: placing the guide rail 1 to be injected into the cavity 421, and making the guide rail 1 abut against the side wall of the cavity 421;

[0083] S22: The upper mold core 41 absorbs the glass body 2 and places it on the mold cavity 421. In the vertical direction, the edge of the glass body 2 corresponds to the guide rail 1;

[0084] S23: The upper mold core 41 and the lower mold core 42 are molded together, and the molding slider 422 is pushed, and the molding slider 422 pushes the guide rail 1 to move until the guide rail 1 is pressed against the side wall of the cavity 421;

[0085] S24: performing injection molding to connect the glass body 2 and the guide rail 1 through the injection molding edging 3 .

[0086] The above steps are to reserve adjustment space between the side wall of the cavity and the second partition wall, and since the second partition wall of the guide rail is not in contact with the side wall of the cavity (such as Fig.10 As shown in the figure, the guide rail avoids the sealing boss of the upper mold core, and because there is a distance between the guide rail and the sealing boss of the upper mold core (i.e., the sealing gap), the material liquid will flow out from between the buffer angle of the guide rail and the sealing boss of the upper mold core, thereby generating flash after injection molding. The purpose of forming the flash is to enable the operator to control the mold matching amount of the cavity side wall (i.e., the adjustment amount of the adjustment gap) according to the thickness of the flash, improve the matching degree and positioning accuracy of the cavity and the guide rail, so that the guide rail can fit with the cavity and avoid contact between the guide rail and the protruding part of the upper mold core, so that the surface of the final injection molded product is complete.

[0087] In some embodiments, the adjustment of the gap in step S1 is specifically to grind or CNC process the side wall of the cavity 421, and make the second partition wall 15 fit with the side wall of the cavity 421. When the second partition wall 15 fits with the cavity 421, the stability of the guide rail injection molding process and the quality uniformity of the same batch of products can be ensured, and the connection tightness of the guide rail cavity can be improved to avoid the generation of flash.

[0088] Please refer to Figures 2 to 10, Embodiment 1 of the present invention is: an injection mold, comprising: an upper mold core 41, a lower mold core 42 and a molding slider 422. The upper mold core 41 has a core 411, and the core 411 abuts against the glass body 2; the lower mold core 42 has a cavity 421 for placing the guide rail 1, and the cavity 421 is correspondingly arranged with the core 411; the molding slider 422 is arranged on one side of the cavity 421, and can slide from the outside of the cavity 421 to the inside of the cavity 421; wherein the core 411 is provided with a space-avoiding gap 413, and the space-avoiding gap 413 is arranged corresponding to the guide groove portion 17. The width of the space-avoiding gap 413 is equal to 0.05mm.

[0089] The lower mold core 42 further includes a sliding limit block 423 , which can abut against the forming slider 422 to limit the sliding distance of the forming slider 422 .

[0090] In this embodiment, the core 411 has a sealing boss 412, which is arranged corresponding to the first sealing surface 111. When the mold is closed, there is a sealing gap 414 between the sealing boss 412 and the guide rail 1, and the width of the sealing gap 414 is 0.08 mm. An adjustment gap is provided between the side wall of the cavity 421 and the second partition wall 15, and the width of the adjustment gap is 0.1 mm.

[0091] In this embodiment, a buffer layer is provided on the surface of the cavity 421 .

[0092] The working principle of this embodiment is as follows: during injection molding, the operator places the guide rail 1 in the cavity 421 of the lower mold core 42, and the glass body 2 is adsorbed on the surface of the core 411 by the upper mold core 41. The operator operates the injection mold 4 to close the mold, and at this time, the molding slider 422 slides from the outside of the cavity 421 to the inside of the cavity 421, extends into the guide groove portion 17, and pushes the first partition wall 13 of the guide rail 1, so that the guide rail 1 is fixed in the injection molding space formed by the cavity 421 and the core 411. The glass body 2 is driven to the preset position, and the injection mold 4 fills the raw material of the edge 3 from the port of the guide rail 1 along the length direction of the guide rail 1 to the connection portion 18 and the glass body 2. The sealing boss 412 on the core 411 cooperates with the first sealing surface 111 of the guide rail 1 to block the flow of the raw material of the edge 3, so that the outer surface of the glass body 2 and the outer surface of the edge 3 of the final glass assembly are flush with the outer surface of the guide rail 1. During the first injection molding, the gap is adjusted to a maximum of 1 mm. The operator adjusts the sealing gap 414 by gradually reducing the width of the sealing gap 414 until the raw material of the edge wrapping 3 does not overflow from the sealing gap 414 .

[0093] Please refer to Figure 1 , Embodiment 2 of the present invention is: This embodiment is obtained by injection molding of Embodiment 1.

[0094] A glass assembly includes a glass body 2, an edge 3 and a guide rail 1; the glass body 2 is connected to the guide rail 1 through the edge 3; in a first direction, the outer surface of the glass body 2 and the outer surface of the edge 3 are flush with the outer surface of the guide rail 1, and the edge 3 has a constriction 31 on the side close to the guide rail 1 on the flush side, and the guide rail has a buffer angle 10 protruding toward the edge 3 near the constriction 31. The buffer angle 10 is an R angle.

[0095] The guide rail 1 has a connecting portion 18 and a guide groove portion 17, wherein the connecting portion 18 extends from the bottom of the guide groove portion 17 along the first direction; the glass body 2 is disposed correspondingly to the connecting portion 18, and the glass body 2 and the connecting portion 18 are connected by the edge wrapping 3. That is, the glass body 2 is disposed on one side of the guide groove portion 17, so that in the first direction, the outer surface of the glass body 2 can be flush with the outer surface of the guide groove portion 17.

[0096] The guide groove portion 17 includes an upper side wall 11, a lower side wall 12 and a first partition wall 13; the connecting portion 18 includes an extension wall 14 and a second partition wall 15; the first partition wall 13 is distributed along the first direction and is arranged between the upper side wall 11 and the lower side wall 12; the lower side wall 12 extends toward the second direction to form the extension wall 14, and the second partition wall 15 is distributed along the first direction and is arranged at an end of the extension wall 14 away from the lower side wall 12; the length of the first partition wall 13 is greater than the length of the second partition wall 15; the side surface of the edging 3 is flush with the outer surface of the second partition wall 15; a groove 131 is arranged at a position of the first partition wall 13 near the buffer corner 10.

[0097] The guide groove portion 17 further includes a first sealing surface 111 , which is disposed between the upper side wall 11 and the first partition wall 13 . The first sealing surface 111 extends from the upper side wall 11 to the lower side wall 12 and gradually tilts toward the second partition wall 15 .

[0098] In this embodiment, the connecting portion 18 further includes third partition walls 16 , which are distributed along the first direction and disposed on the extending wall 14 .

[0099] In this embodiment, the width of the third partition wall 16 gradually decreases from the extending wall 14 to a direction away from the extending wall 14 .

[0100] In this embodiment, the mold cavity 421 forms a receiving groove 4211 for accommodating the guide rail 1 , and a second sealing surface 4212 is formed on the side wall of the receiving groove 4211 . An adjustment gap 19 is provided between the second sealing surface 4212 and the surface of the guide rail 1 .

[0101] Embodiment 3 of the present invention is:

[0102] An injection molding method, applied to the injection mold of the second embodiment, comprises the following steps:

[0103] S1. Mold matching: In the sliding direction of the molding slide block 422, a sealing gap 414 is reserved between the buffer angle 10 of the guide rail 1 to be matched with the mold and the sealing boss 412 of the upper mold core 41, and the first injection molding is performed. After the first injection molding, it is determined whether the adjustment gap 19 needs to be adjusted according to the flash thickness on the surface of the guide rail 1. If the flash thickness is greater than 0.1 mm, the adjustment gap 19 is increased;

[0104] S2. Production: Place the guide rail 1 to be injected into the cavity 421 of the lower mold core 42, the upper mold core 41 absorbs the glass body 2 to be injected, the upper mold core 41 and the lower mold core 42 are molded together, and the sealing boss 412 of the upper mold core 41 enters between the buffer corner 10 of the guide rail 1 and the glass body 2. In the sliding direction of the molding slider 422, a sealing gap 414 is formed between the buffer corner 10 of the guide rail 1 and the glass body 2, and injection molding is performed.

[0105] The mold matching step specifically includes the following steps:

[0106] S11: placing the guide rail 1 to be injected into the cavity 421, and driving the guide rail 1 to move toward the side where the molding slider 422 is located, so that an adjustment gap 19 is formed between the second partition wall 15 of the guide rail 1 and the side wall of the cavity 421;

[0107] S12: The upper mold core 41 absorbs the glass body 2 and places it on the mold cavity 421. In the vertical direction, the edge of the glass body 2 corresponds to the guide rail 1;

[0108] S13: The upper mold core 41 and the lower mold core 42 are molded together, and the molding slider 422 is pushed, and the molding slider 422 pushes the guide rail 1 to move until the guide rail 1 is pressed against the side wall of the cavity 421 to eliminate the adjustment gap 19;

[0109] S14: performing injection molding to connect the glass body 2 and the guide rail 1 through the injection molding edging 3;

[0110] S15: Determine the thickness of the flash. If the thickness of the flash is greater than 0.1 mm, process the side wall of the cavity by CNC.

[0111] The production steps specifically include the following steps:

[0112] S21: placing the guide rail 1 to be injected into the cavity 421, with the guide rail 1 abutting against the side wall of the cavity 421;

[0113] S22: The upper mold core 41 absorbs the glass body 2 and places it on the mold cavity 421. In the vertical direction, the edge of the glass body 2 corresponds to the guide rail 1;

[0114] S23: The upper mold core 41 and the lower mold core 42 are molded together, and the molding slider 422 is pushed, and the molding slider 422 pushes the guide rail 1 to move until the guide rail 1 is pressed against the side wall of the cavity 421;

[0115] S24: performing injection molding to connect the glass body 2 and the guide rail 1 through the injection molding edging 3;

[0116] S25: After the injection molding is completed, the molding slider 422 moves in a direction away from the guide rail 1, the upper mold core 41 absorbs the injection molded product and opens the mold, and S21 to S25 are continued.

[0117] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A glass assembly, characterized in that: Including glass body, edging and guide rails; The glass body and the guide rail are connected via the edging; In the first direction, the outer surface of the glass body and the outer surface of the edging are flush with the outer surface of the guide rail, and the edging has a constriction on the flush side close to the guide rail, and the guide rail has a buffer angle protruding toward the edging direction near the constriction.

2. The glass assembly according to claim 1, characterized in that: The guide rail has a connecting portion and a guide groove portion, the glass body is correspondingly arranged with the connecting portion, and the glass body and the connecting portion are connected by the edging; The guide groove portion includes an upper side wall, a lower side wall and a first partition wall; The connecting portion includes an extension wall and a second partition wall; The first partition walls are distributed along the first direction and are arranged between the upper side wall and the lower side wall; the lower side wall extends in the second direction to form an extension wall, and the second partition walls are distributed along the first direction and are arranged at an end of the extension wall away from the lower side wall; The length of the first partition wall is greater than the length of the second partition wall.

3. The glass assembly according to claim 2, characterized in that: The side surface of the edge is flush with the outer surface of the second partition wall.

4. The glass assembly according to claim 3, characterized in that: The connecting portion further includes third partition walls, which are distributed along the first direction and are arranged on the extending wall.

5. The glass assembly according to claim 3, characterized in that: The buffer corner is arranged at the connection between the upper side wall and the first partition wall, and the buffer corner has a first sealing surface, so that the first sealing surface is arranged between the upper side wall and the first partition wall, and the first sealing surface extends from the upper side wall to the direction where the lower side wall is located and gradually tilts toward the direction close to the second partition wall.

6. An injection mold, characterized in that: Used to prepare the glass assembly according to any one of claims 2 to 5, comprising: The upper mold core is capable of adsorbing the glass body, and the upper mold core has a core, and the core abuts against the glass body; A lower mold core has a cavity for placing the guide rail, and the cavity is arranged corresponding to the core; A molding slide block is arranged on one side of the mold cavity and can slide from the outside of the mold cavity to the inside of the mold cavity to push the guide rail; Wherein, the core has a sealing boss, and the sealing boss is arranged corresponding to the first sealing surface; When the mold is closed, there is a sealing gap between the sealing boss and the guide rail, and / or a space is formed between the core and the outer surface of the guide rail.

7. An injection mold according to claim 6, characterized in that: When the mold is closed, the width of the sealing gap is less than or equal to 0.2 mm.

8. The injection mold according to claim 6, characterized in that: The mold cavity is formed with a receiving groove for receiving the guide rail, the side wall of the receiving groove is formed with a second sealing surface, and an adjustment gap is arranged between the second sealing surface and the surface of the guide rail.

9. An injection molding method, applied to the injection mold as claimed in any one of claims 6 to 8, characterized in that: The following steps are involved: S1, mold matching: in the sliding direction of the molding slider, a sealing gap is reserved between the buffer angle of the guide rail to be matched with the mold and the sealing boss of the upper mold core, and the first injection molding is performed. After the first injection molding, it is determined whether the adjustment gap needs to be adjusted according to the flash thickness on the surface of the guide rail. If the flash thickness is greater than 0.1 mm, the adjustment gap is increased; S2, production: the guide rail to be injected is placed into the cavity of the lower mold core, the upper mold core absorbs the glass body to be injected, the upper mold core and the lower mold core are molded together, the sealing boss of the upper mold core enters between the buffer corner of the guide rail and the glass body, in the sliding direction of the molding slider, the sealing gap is formed between the buffer corner of the guide rail and the glass body, and injection molding is performed.

10. An injection molding method according to claim 9, characterized in that: The production process includes the following steps: S21: placing the guide rail to be injected into the cavity, and making the guide rail abut against the side wall of the cavity; S22: The upper mold core absorbs the glass body and places it on the mold cavity, and in the vertical direction, the edge of the glass body corresponds to the guide rail; S23: the upper mold core and the lower mold core are molded together, the molding slide block is pushed, and the molding slide block pushes the guide rail to move until the guide rail is pressed against the side wall of the cavity; S24: performing injection molding to connect the glass body and the guide rail through injection molding.

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